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Transmitter and Receiver

Discussion in 'Radio and Wireless' started by Bruce Dorworth, Feb 24, 2018.

  1. Bruce Dorworth

    Bruce Dorworth

    1
    0
    Feb 24, 2018
    Help where do I start??? I would like to have a transmitter that when powered up will send a signal to a receiver. Once transmitter loses power it will stop sending the signal. The receiver will output either a sound, blinking led or etc. The transmitter should be able to transmit about 50 feet through walls. These circuits should be somewhat compact.
    I look forward to your suggestions.
     
  2. AnalogKid

    AnalogKid

    2,307
    649
    Jun 10, 2015
    ebay wireless doorbell. $3

    ak
     
  3. Bluejets

    Bluejets

    3,532
    716
    Oct 5, 2014
    Lost model alarm... Same place
     
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